Paul a



F. A. HANDEL.

BONER.

Amm-Amon men ||1LY9.1913.

Panted May 8, 1917. I d SHETSSHEET 2 1 l OOOOQOQQQO@ @OGOQOGOOOO UNIIEI) STATES 'PATIENT (IFlilIlilY PAUL A.. RANGEL, OF NEW YORK, N. Y.

BOILER.

Specification uf Letters Patent.

the boit-.an tubes of bfizlrizontal water tube boilers have a ,oininiiclvio burn ont under hearv iliade. Chir-s proves that he amount ci hin-it To he absorbed inmunes very great and 'that the circulation in the bottom tubes not fast enoughl'o s'upifly snfiicienr. water for,evaporation. 0r, stated in another way, the percentage of steam in the mixture discharged from the lower nest of tubes is very great` as .compared to the percentage' o steam in the mixture discharged from the upper nest of tubes. Experiments and theory indicate that the iirstfrow of boiler tubes directly over the fire is doingr Soniething like 35% to 40% of thework done by the Whole-obten rows; 'that the second rohr doing 15% to 520% of the work; and the fifth, for instance, 'but little more than five per cent. of the work.

The rapii'lity of ciii'ulation in a boiler tube 4is controlled, among other things, by the diiferenceinvvei ht'of the column of -lnid at the entrance" y tube. M vinrention relate formof boiler for l segregnitinv fromthe lower grouper nest di' tubes from .groups or nests "of 'tubes higher up, so as to obtain jinaxiniurn rapidity oi' circulation Ain `the bottoni tubes'.` A' t The inyeiition consists further in so constructing the boiler that the Water fed to the bottom tubes `of tliehoiler can bc only such. water as has already passed through the ain approved Vaction of the heat in these tu ies.

upper tubesffand is partlypurified. by the Other advantages vention will appear scription given below, inthe accompanyin'ghdrawin s, which show referred embodiments o t le invention and mi which# Figure 1 section taken on the line a--b of Fig. 2.

from the4 detailed dend dief large :my

and olneets of my inconnectionV withA upper' tubes.

showis 'a 4longiiudinal vertical' PntentedMay 8, 1917.

Application tiled July 9, 1913. Serial No. 778,034.

` Fig. 2 is a cross-section taken on the line ffmfi of rig. 1. s

Fig. 3' is a top plan View of the feed pipe and associated mechanism,

Fig. -i -is a section similar to that shown in Fig. 2, illustrating my invention in con junction with a. boiler provided with a pluraliiy of drums. 4

Fig. 5 isa section on line c-f of Fig. 6

illustrating the invention as applied to an 55 A-sb a pcd boiler.

Fig. is a ff-4i of Fig. 5. l

The simplest application of the invention is shown in Figs. 1 and 2. indicates thc Water and steam drum, 11 ihc troni header, 12 the rear header, 13 the boiler tubes, of one i of the conventional types of Heine boiler. For the sake of sim- .licity' the furnace and settin he front header is provide with :i light sheet 'iron partition 14 which forms two separate channels 15 and 16 et the-left and right for the direct flow of steam and witter horizontal section oni line from the bottom rows of tubes to the drinn. so`

Toprovidc this additional space, the boiler tubes, in the preferred construction, are not spaced out the `full widthof the header; in'other words, th header is made Vsolnevijhat wider than is needed for the width of the r tubes, and as a result it; enables ine to connect the lower tubes, in which the greatest 'evaporation .takes place, indepc'indently vv ith lthe steam drinn, and as the discharge from these tubes contains a large preportifn ot"Q0 operation with other novel structures in the boiler drum, so that only water that has been already fed to the uppertubes can'be fed to the lower tubes. As a result, all water' that is ted to the lower tubes has been partially purified This partition. 1.9 .divi es' the rear header into three separate channels 20, 21 and 22, see Figi 3.' Ordinarily, *it would be unnecessary to put partitions in the rear.

header similar to those inthe frontheader,

In detail7 l() 70 are omitted. 75

through which the 95 byits4 passage -throu l1 the 105 .since the area for tle downward -flow ot yyate r in the rear water leg is ample to insure, a goml snIDly of' water lo the bottom tubes` as -well aS to the 'upper tubes. llowever,y by insertin f a partition or partitions in the rear betaler similar lo those in the front header, an a l\'a| i'ta,fe of another nature, as stated above, is secured. Within thil drum 10 is a feed water pipe 225, so directed that' the Water distharged therefrom. iustead of being admitted to mix with all the water in the inaiu 4tenui drum and then to How partly to the upper tubes andparttv to the lower tubes vof the boiler, is constrained to flow l o\\|1\\'ard inlo the ventral channel or ,passage-wav ot the waterv leg -whieh eonn'eots only `with the upper tubes of the boiler. The water rising'fro'm the front header lloras bark through thev drum, and vat the rear it lo\\s lon'n the lrear header not, only in the outer parts romn'iunieating with the lower tubes, but also in the central part cominunit-ating with the upper tubes, mixA ing with the. fresh feed. The novel construrtorrandlot-ation of the feed water pipe. together with the partitioned header (rear) simpl)v insures that the feed water dis -eharged from the feed-pipe cannot pass direi'tly to the tubes nearest the lire.'

ln Fig. 4f I h`a 'e illustrated the in rention whereinm plulalitv ot' drums are employed. In.tliis"easefthe partition platesf24 and div'ide'the header intotre channels.r namely" 2G, 27,' ltljl 28; for the passage of steam and'. water frou'ithe loa'er tubes 'to tlie'druins and Qtbfand 250 fori thepassage of steam and ivater'troin tlieaipper tubes to the drums. v

ln Figs. 5 and t'. show the manner of utilizing ytheinrt'-nt:i |`1 broadly with va'nloditied .torni ot' boiler ermstruxfti'on. The headers in this'lig'rure are ot' edgefshal'ied nearest the' fui-nave and areinostliable -to he burnt 'out and' are provided with .'epa- -xtf` .-liafnriel ortlu'es l ,-e .It iiila` sep 'i'ielafor flues .-Zan'd 38," respectively. :The

.iiir'lination of the tube is sutihthat the stea|n''and" water discharged frolr'r 'them 'niakean easy t-urn upward into thetlui-r. and

as a resultthere maintained 'superiortlow and eiroulation in them. T'h'is modifiedform ol' header alo-earries' with it this important at-lvan'tage'. a'ii'iongothers that an A shaped jeonitnistion.. 'nnber is obtained. '()iring to Athe.*wedge-.1 ape .construction 4of the piiiasesA 394 and +0 the rearfend.- orf theV battles" 411 anti. 424 are arranged on a hija ,as .in'rlieatedat 4 3' iand itv in order 4to effect a uniform.absorption of heat. througliolit, the

.the mixture of water and steam in the Corres'lfionding channels at a. minimum. ,TheI passageways or channels 15 and 16, to gether with the box extensions 45 constitute in ett'eet-a' conduit for the How of stea and water from the lmil'r tubes to the boiler drum, the portions` Ior extensions 45 serving to ett'eet thtl liberationof steam .from the passagei Yays' or channels.

lt is to be understood that I do'not limit myself to the exact details of construction herein shown. and described, as ini-'nor ehanges may be made and .other embodiments resorted Ato without necessarily devi ating from the true spirit and scope of my invention.

lhat I elaim is-, v

1. A .header or water leg forwater tube boilers, provided with a, separate passagewzt'v `Within the same, to oom-"eyl the. steam an d l'wfa 't'.i tir and stea'm drum, andformed by alfplati'- iti( n "or partitions norma'ltotheplane ott/he header.

ter from the lower tubes; directly to boilers, provjdedwith a. plurality of passageways within the same. eaeh of said passageways adapted .to eonvey. steam andwajter- 3. A. Water tube boiler comprisingvfront and rear, header-S, eachl d11vulec1 into' "aplalos rality of. passageways, .the upper' nest.'-v of boiler. tubes` Connected to one o'f the passage# .Wars ofeach of saidv headorsiand the -lower nest of, tubes. conrieetedhto another' 'passageva'y rn each of sa-id headers, and means for admitting feed Water through. the upper nest of tubes, andjts corresponding 'passage-f way to the water a'ndsteam drain, said passageways in saidheaders for the lower nest of ,tubes connecting direetly with the d'rum whereby-the [water from saiddrumproviously heated by a'ssving' through the upper tubes is permitte to circulate through' the lower nest'of' tubes: and the last mentioned passageways( 4. A a' ter. tube l5" means for ad! "tti-.ngi tin'lyvwatet' to the .lower nest' of tubes -hjjeh through the '.apperhest of titties, comprising iIet" prorided `wit-.lr

has 'already passed i a front and rear header provided with passageways to which the upper tubes are connected and sel'mrated passageways opening, into the water and steam drum towhich the lower tubes Vare connected, and means for admitting feed water to the drun'i through the upper tubes and connected. passageways. 5. water tube boiler provided with .means for admittingr only water bo the lower nest of tubesy whiel'i has already passed through the upper nestof tubes, coun'nising front and rear headers each providedy with a passageway leading to and from the drum respectively and to which the upper tubes are connected, and `se'iarated passageways opening into the watel" and steam drum to which the lower tubes are coi'inected, and` means for admittil'ig feed water to the boiler said upper nest of tubes in addition to the flow from the feed pipe.

(l. The combination with a` water tube boiler, ol. a furnace in which, the water tubes are disposed to form an A-shaped combustion chaniber in a plane at right angles to the tubes, with means for seglz'ehfting `the steam and Water discharged from the tubes of the boiler, so that the discharge from the tubes nearest the furnace llows to the steam and Water drum Without mixing with the discharge .from the tubes more remote from the furnace. p

7. The -eombination with a fater tube boiler, of a furnace in which the water tubes are disposed to form an A-sliaped fcouil'nistion chamber in a plane at right angles to the tubes and also forming wedge-shaped passes for `said furnace gases, and balles located in said boiler with the` ends thereof cut on a bias to effect a uniform alisorlit'ion of heat throughout the boiler tubes in said passes.

(lli

8. The con'ibination with a water tube boiler, of a furnzua n which the 'atei' tubes are disl'iosed to form an A-shaped mnubustion chamber .in a plane at substantially right ai'igles to the tul'ics and also forming wedge- Slnaped passes for said furnace grin-sy and means for admitting witur-totlie lowu r nests of tubesl which has already passw'l through the upper nests ol' tubos comf'irising front Vl ipliier nests i ehan'iber in a plane 'at s'ul'atantially right angl to the tubes arulalso forminlrr wedgeI sha pa for said furnace ga batlles admitting feed water to the drums through the `upper tubes and connected passage-ways.

1,0. The combination with a water-tube boiler provided with a plurality of horizon-- tal drums of a furnace in which the Water .tubes are disposed to form an A-shaped combl. tion chamber in a plane at substantially right angles to the tubes, and means for segregjrating the steam and water discharged from thetubes of the boiler comprising front and rear headers provided with passage- 'Ways to which the upper tubes are connected, and separz'iite il passage-Ways oljieiiing into the water an( lower tubes ar*y eiimnected, and means for admitt'mip,r feed` water to the drum through the upper tul and crmueeted passage-Ways.

1l. The eoi'nbinatiol'l with u Water-tube [miler provided with a plurality of horizontal drums, of means for admittin only Vl-'ater to the lower nests of tubes Whleh has iidready passed` lfirough the upper nests of tubes comprisine,i a front and a rear header pi vided "n'l'h lllnassaffe-Ways to which the tubes are connected, and sepa rated passage-ways opening into the water andisteam drums to which the lower nests of tubes are connected, and. means for admittingr feed Water to said drums through the upl'ier nests of tubes and cennected passageways.

1Q. The combination With a Water-tube boiler provided with a plurality of horizontal drums, of means for admitting only water to the lower nests of tubes which has alread;7 pas l through the upper nests of tubes compri nl: a front and a rear header each of 'wl'iich :is common to said plurality of drums :unil each of which is provided with a pluralitfy' of passage-ways to which the upper nest?` of tubes are cmmectml, and, separated p age-ways in each of said headers opening into the water and steam drums to which the lower nests of tubes areI connected, and means 4lor admitting' feed water to each ol" said drums through the upper nests of tubes and -uobnrrlod passage-Ways. i

.l. A header or water-log For water-tube bn. are,prrnfidnd with a separate [mssagcway witlun the salue to convey the steam and "water friinn the lower tubes to the water and eam drums to which the' `4g i A I 1,225,304

steam drums, said passageway formed bl a partition normal to the plane of the hea( er, in combination .with means for effecting a, separate liberation of steam discharged from said lower tubes.

14. A header or water-leg for water-tube boilers provided with a plurality of passageways within the same, elch of said passage- Waysadapted to convey steam and water from groups or nests of tubes located at dif ferent heights, said passageways formed by partitions normal to the plane of the header, i

1n combination with means for effecting a separate liberation of steam discharged from each of said passageways.

In testimony whereof I aix my signature in the presence of two subscribing witnesses.

PAUL A. BANCEL. Witnesses:

THOMAS J. BYRNE, WM. BOHLEBER. 

